Colorado Engine

Excellent, guys really know their business, very knowledgable.

I have great confidence that Colorado Engine will look after my car more extensively than I would myself. They always ask before performing a service I didn't request and suggest interventions I should consider to avoid problems in the future. They are old fashioned, neighborhood business folks. They care about their customers. My new car goes off warranty this summer. Colorado Engine will be picking up the service for that car also.

We've been going to Colorado Engine for the past 3 years and we highly recommend them! They're professional, knowledgeable, and most of all honest.
They've worked on our 2000 Mercedes and saved us hundreds of dollars compared to the dealer quotes. 
Our 1960 Corvair broke down and they had it fixed and on the road in no time.
They completely rebuilt our 1965 Mustang from the ground up and it's running like new again.
Whats so impressive about these guys is that they KNOW their cars. No matter what kind of car you own, they can fix it, 
from simple maintenance to rebuilding an engine. 
You leave confident knowing that they did their best work and that they saved you money. 
It's hard to find good mechanics you can trust these days but Terry and Tony are the best!

They treated us with friendliness and courtesy. In one day, they quickly diagnosed it and fixed it. They were very cooperative in allowing us to pay for it by credit card over the phone. They are obviously one of the most competent  repair shops in the North Denver area. 

We've been going to Colorado Engine for the past 3 years and we highly recommend them! They're professional, knowledgeable, and most of all honest.
They've worked on our 2000 Mercedes and saved us hundreds of dollars compared to the dealer quotes.
Our 1960 Corvair broke down and they had it fixed and on the road in no time.
They completely rebuilt our 1965 Mustang from the ground up and it's running like new again.
Whats so impressive about these guys is that they KNOW their cars. No matter what kind of car you own, they can fix it,
from simple maintenance to rebuilding an engine.
You leave confident knowing that they did their best work and that they saved you money.
It's hard to find good mechanics you can trust these days but Terry and Tony are the best!

Work was performed punctually, necessary parts were replaced; however, the new engine did not perform as well as the old.  The speed control cable had not been reconnected following installation, but was reconnected in subsequent service.  Engine loaded up at stop lights, hesitated when accelerating, and misfired badly. in fact, nearly refused to run, and set SES code after about 1500 miles service. 
Took the vehicle back to Colorado Engines multiple times.  Was told after the first trip that the codes were "inadvertently" erased, but that the code was consistent with a bad knock sensor.   This sensor had been replaced by the company during initial installation.  Vehicle did not set codes again, but continued to load up and hesitate when accelerating.  Took it back but was informed that, since it didn't set any codes, the company could not repair it.  Finally, in desperation, took vehicle to another mechanic.  Spent more than $300 for diagnosis and repair.  Found that  Colorado Engines had sheared  a new spark plug wire when installing the engine.  The resulting gap caused the affected cylinder to misfire and knock, and was the reason that the knock sensor appeared to be bad.   The damage was fairly obvious to the second mechanic, but Colorado Engines could not be bothered to check the spark plug wiring. 
Recently, after 10,000 miles, the water pump, which should have been replaced pro forma, began leaking.  Caught it before it failed, otherwise it would have voided the engine warranty.  Bottom line:  In my case, Colorado Engines appears to do an average job of installation, but does not appear to stand behind their work.  They offer excuses and depend overly much on engine code readouts.  As a consequence, I cannot recommend Colorado Engines for engine replacement.

Highly recommend for vintage auto repair.Based only on references from Angie's list, took our vintage car in for basic service and problems with the transmission. This company was great. They went through everything, found the parts needed to rebuild the transmission and had it running perfect within a week.The best!   A+++

We took my wife's car in to have it checked out for problems with acceleration and the check engine light was on. They were able to see us quickly and upon arriving (and mentioning we were Angie's List members) we were given an classic cars wall calendar and a tour of the shop. Everyone was very friendly and professional. We left the car there and heard back from the shop after a couple hours. They explained the problem we were currently having (bad spark plug wires) and suggested an overall engine tune-up. They also diagnosed some other problems with the car. They were very thorough explaining what the problems were, how long we might expect to be able to put off repairs, what the consequences of not repairing were, and how much it would cost for parts, labor, and to do things separately or all together. Overall I felt they were very honest, upfront, and fair which is more than I can say about others we've seen in the past.

Great service. They didn't try to peddle any unnecessary services.

Was advised to replace tires and recheck for noise. New tires addressed the problem and spared the extra expense. They could have just done the rear end and not mentioned the tires. They are an honest and competent auto repair shop.

This is a great experience. I'll be going back with my other cars as well.